... Meter, Turbidity Meter, Colorimeter, Gloss Meter, Tintometer, Automatic Polarimeter, Auto Melting Point Apparatus, Automatic Refractometer, Abbe Refractometer, PH/DDS/TDS ... Reading0.005°Reproducibility≤0.01°Accuracy±0.02°Measurement Range+45°~-45°Transmittance1%Light SourceSodium Lamp plus Filter, Wavelength ... 300(W)mm×200(H)mm & 25kg WZZ-2A Auto Polarimeter / Digital Polarimeter / Polarimeter Tester